<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title><?= $title ?? 'Codeless Blog' ?></title>
    <link rel="stylesheet" href="/assets/css/style.css">
</head>
<body>
    <header>
        <h1><?= SITE_TITLE ?></h1>
        <nav>
            <a href="/">首页</a>
            <a href="/?route=about">关于</a>
            <a href="/create.php">写文章</a>
        </nav>
    </header>
    <main>
